如何计算 javascript 中两个日期之间的天数

Question

I am having two dated in dd/mm/yyyy format. How to calculate the number of days between these two dates in javascript/jquery.

Example: Fom date is 20/06/2000, to date is 16/08/2011

Answer 1

Simple code

var Date1 = new Date (2008, 7, 25);
var Date2 = new Date (2009, 0, 12);
var Days = Math.floor((Date2.getTime() - Date1.getTime())/(1000*60*60*24));

Answer 2

t1="10/10/2006";
t2="15/10/2006";

//Total time for one day
var one_day=1000*60*60*24;  //Here we need to split the inputed dates to convert them into standard format for further execution
var x=t1.split("/");     
var y=t2.split("/");   //date format(Fullyear,month,date) 

var date1=new Date(x[2],(x[1]-1),x[0]);

// it is not coded by me,but it works correctly,it may be useful to all

var date2=new Date(y[2],(y[1]-1),y[0])
var month1=x[1]-1;
var month2=y[1]-1;

//Calculate difference between the two dates, and convert to days

_Diff=Math.ceil((date2.getTime()-date1.getTime())/(one_day));

Answer 3

var date1 = new Date(2000, 6, 20);
var date2 = new Date(2011, 8, 16);

var one_day = 1000*60*60*24; //Get 1 day in milliseconds

var days = Math.ceil( (date2.getTime() - date1.getTime() ) / one_day);

Math.ceil to round up, Math.floor to round down.

http://www.javascriptkit.com/javatutors/datedifference.shtml